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3 years ago

Why is glass useful for making eyeglasses?

2 answers:

6 0

Glass lenses have less impurities in the material compared to plastic lenses, and so they are optically clearer and easier to see through. ... Also, because glass is a much harder material than plastic, glass lenses do not scratch as easily as plastic lenses, even if they have scratch resistant coating.

german3 years ago

5 0

Answer:

Because it can be shaped to make things magnified

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A cargo truck travels at 75 mi/h. There are two drivers that keep the

ra1l [238]

Answer:

750

Step-by-step explanation:

What is the empirical formula of a carbon- oxygen compound, given that a 95.2 g sample of the compound contains 40.8 g of carbon and the rest oxygen.

4 0

3 years ago

Andre45 [30]

Answer:

The volume is 356 $in^3$ , which agrees with the second answer option listed.

Step-by-step explanation:

Recall that the volume of a pyramid is the product of the area of its base(B) times the pyramid's height (h), divided by three:

$V=B*\frac{h}{3}$

For our case, the area of the base "B" is the area of a square of side = 8 inches. That is the area B is:

$B=(8 \,in)^2=64\,in^2$

Now we can include this value and the value of the pyramid's height (h=12 in) in the formula for the volume to give the answer:

$V=B*\frac{h}{3}=64\,in^2\,\frac{12\,in}{3} =256\,in^3$

5 0

3 years ago

Read 2 more answers

The following is the graph of 8y = 2x − 10

Gelneren [198K]

<span>Simplifying 2x + 8y = 10 Solving 2x + 8y = 10
Solving for variable 'x'. Move all terms containing x to the left,
all other terms to the right.
Add '-8y' to each side of the equation. 2x + 8y + -8y = 10 + -8y Combine like terms: 8y + -8y = 0 2x + 0 = 10 + -8y 2x = 10 + -8y Divide each side by '2'. x = 5 + -4y Simplifying x = 5 + -4y</span>

3 0

4 years ago

Read 2 more answers

In 1 minute I typed “It is as it was.” 8 times. So what is the dependent variable?

Elina [12.6K]

The dependent variable is the number of times you have typed. This is because time is the independent (x) variable as the number of times you've typed is the dependent (y) variable.

5 0

3 years ago

Marissa dug three fifths of a hole in one tenth of an hour. Find the rate<br> in holes per hour

snow_lady [41]

Answer:

Step-by-step explanation:

This might be easier to do in decimals. Let's try it.

3/5 = 0.6

1/10 = 0.1

rate = holes / hours

rate = 0.6/0.1

rate = 6 holes per hour

Try it with fractions.

rate = $\frac{\frac{3}{5} }{\frac{1}{10} }$ Invert and multiply the 1/10

rate = $\frac{3}{5} *\frac{10}{1}$ = 30/5 = 6

It's the same answer. Pick the method that you feel most comfortable with.

3 0

3 years ago